Skip to main content
Internet Archive's 25th Anniversary Logo

NASA Technical Documents

Technical documents from NASA



rss RSS

26,275
RESULTS


Show sorted alphabetically

Show sorted alphabetically

SHOW DETAILS
up-solid down-solid
eye
Title
Date Published
Creator
Planetary Science Decadal Survey
Planetary Science Decadal Survey
collection
261
ITEMS
108,544
VIEWS
collection

eye 108,544

Search the Planetary Science Decadal Survey collection: Advanced Search
NASA Technical Documents
by Wolverton, B. C.; Douglas, Willard L.; Bounds, Keit
texts

eye 29,389

favorite 15

comment 1

Previously, preliminary data on the ability of a group of common indoor plants to remove organic chemical from indoor air was presented. The group of plants chosen for this study was determined by joint agreement between NASA and the Associated Landscape Contractors of America. The chemicals chosen for study were benzene, trichloroethylene, and formaldehyde. The results show that plants can play a major role in removal of organic chemicals from indoor air.
favorite ( 1 reviews )
Topics: ARTIFICIAL INTELLIGENCE, FUZZY SETS, FUZZY SYSTEMS, NEURAL NETS, SET THEORY, DYNAMICAL SYSTEMS,...
NASA Technical Documents
texts

eye 27,404

favorite 1

comment 0

Independent Tracking Coordination Program - trigonometric tables for calculating coordinates of satellites
Topics: COORDINATES, TRACKING SYSTEM, TRIGONOMETRY, COORDINATION, MATHEMATICAL TABLES, SATELLITE TRACKING,...
NASA Technical Documents
by Oberth, H
texts

eye 7,791

favorite 6

comment 0

A theoretical analysis of the parameters involved in spacecraft design and propulsion and the successful completion of space missions is presented. Various types of rockets and their specialized application are described. The physiological effects of space flight are discussed. The requirements for fuel, specific impulse, and energy considerations are included.
Topics: BOUNDARY LAYER SEPARATION, DIFFUSERS, NONUNIFORM FLOW, SEPARATED FLOW, PRESSURE GRADIENTS, VELOCITY...
Planetary Science Decadal Survey
by Steven A. Hauck, II, Douglas A. Eng and George J. Tahu
texts

eye 1,842

favorite 0

comment 0

The purpose of this study was to determine the feasibility of a landed mission to Mercury. It was conducted by the JHU/APL Space Department in partnership with Marshall Space Flight Center, Glen Research Center, and Steven Hauck from Case Western Reserve University. This was conducted as a concept maturity level (CML) 3 study focusing on feasibility trades and options for concepts with a goal of determining whether such a mission could be accomplished within a Principal Investigator (PI)-led...
Topics: Mercury, Concept Study, NASA, Lander, Mission, Decadal
Methane, methanol, glycerol, and hydrocarbons for microbial life support systems on extended space missions, animal links in closed system, use of wastes, and chemical synthesis of food
Topics: HYDROCARBONS, HUMAN WASTES, MICROBIOLOGY, MICROORGANISMS, NUTRIENTS, SPACE MISSIONS, SPACECRAFT...
NASA Technical Documents
texts

eye 4,791

favorite 10

comment 1

No Abstract Available
favoritefavoritefavoritefavoritefavorite ( 1 reviews )
Topics: ARTIFICIAL SATELLITES, GRAVITATIONAL FIELDS, PLANETARY ROTATION, SATELLITE PERTURBATION, ORBIT...
NASA Technical Documents
by Garza, Frederico R.; Morelli, Eugene A
texts

eye 2,410

favorite 1

comment 0

Nonlinear six degree-of-freedom simulations for a variety of aircraft were created using MATLAB. Data for aircraft geometry, aerodynamic characteristics, mass / inertia properties, and engine characteristics were obtained from open literature publications documenting wind tunnel experiments and flight tests. Each nonlinear simulation was implemented within a common framework in MATLAB, and includes an interface with another commercially-available program to read pilot inputs and produce a...
Topics: CLOSED ECOLOGICAL SYSTEMS, AEROSPACE MEDICINE, AEROSPACE ENVIRONMENTS, MICROGRAVITY, SPACE...
NASA Technical Documents
by BAZOV, D. I
texts

eye 11,621

favorite 0

comment 1

PRINCIPLES OF HELICOPTER FLIGHT UNDER VARIOUS CONDITIONS ARE REVIEWED, GIVING SPECIAL ATTENTION TO THE OPERATION OF THE MAIN ROTOR. A BRIEF HISTORY OF HELICOPTER DEVELOPMENT IS PRESENTED, TOGETHER WITH A SUMMARY OF THE MAIN COMPONENTS OF A HELICOPTER AND A CLASSIFICATION OF THE VARIOUS TYPES OF HELICOPTERS. THE CHARACTERISTICS OF THE MAIN ROTOR AND ITS OPERATION DURING AUTOROTATION AND DURING AXIAL AND OBLIQUE FLOW ARE CONSIDERED. ALSO CONSIDERED ARE VERTICAL AND HORIZONTAL FLIGHT, ALTITUDE...
( 1 reviews )
Topics: BALL BEARINGS, FATIGUE TESTS, LUBRICATING OILS, SERVICE LIFE, STEELS, AIRCRAFT ENGINES, HIGH...
Telemetry and ground support equipment design and developments for Deep Space Network
Topics: FLOW COEFFICIENTS, MOLECULAR FLOW, TURBULENT FLOW, VISCOSITY, TURBULENT BOUNDARY LAYER, VELOCITY...
No Abstract Available
Topics: APOLLO SPACECRAFT, HEAT TRANSFER, SPACECRAFT CONFIGURATIONS, AERODYNAMIC HEATING, RESEARCH...
NASA Technical Documents
by Mateer, G. G.; Seegmiller, H. L.; Hand, L. A.; Szodruch, J
texts

eye 890

favorite 0

comment 0

Detailed experimental data were obtained on a supercritical airfoil and in the surrounding flowfield. Surface pressures were measured on both the model and wind-tunnel walls. The velocity field above the airfoil and the field in its wake was documented using a laser Doppler velocimeter. The data illustrate the effect of Mach number and angle of attack on the flow over the airfoil. Angles of attack ranged from 0.5 to 1.5 degrees and the Mach number was varied from 0.73 to 0.8. These variations...
Topics: INTERPLANETARY SPACECRAFT, MANNED SPACECRAFT, MISSION PLANNING, SPACE TRANSPORTATION, TECHNOLOGY...
NASA Technical Documents
texts

eye 2,776

favorite 0

comment 0

This document presents the postflight trajectory for the Apollo/Saturn 5 AS-506 flight. Included is an analysis of the orbital and powered flight trajectories of the launch vehicle, the free flight trajectories of the expended S-1C and S-2 stages, and the slingshot trajectory of the S-4B/1U. Trajectory dependent parameters are provided in earth-fixed launch site, launch vehicle navigation, and geographic polar coordinate systems. The time history of the trajectory parameters for the launch...
Topics: AEROTHERMODYNAMICS, SPACECRAFT MODULES, SPACECREWS, DESIGN ANALYSIS, ENVIRONMENT EFFECTS, LUNAR...
NASA Technical Documents
by Tverskoi, P. N
texts

eye 2,245

favorite 1

comment 0

Textbook of meteorology and atmospheric physics
Topics: ATMOSPHERIC PHYSICS, HYDROMETEOROLOGY, METEOROLOGY, TEXTBOOKS, WEATHER, ATMOSPHERE,...
NASA Technical Documents
texts

eye 9,850

favorite 0

comment 0

This handbook is intended to provide a ready reference for many of the solid and liquid lubricants used in the space industry. Lubricants and lubricant properties are arranged systematically so that designers, engineers, and maintenance personnel can conveniently locate data needed for their work. This handbook is divided into two major parts (A and B). Part A is a compilation of solid lubricant suppliers information on chemical and physical property of data of more than 250 solid lubricants,...
Topics: ARIZONA, GEOCHRONOLOGY, GEOLOGICAL FAULTS, GEOMAGNETISM, ROCK MECHANICS, TECTONICS, MAPPING,...
Planetary Science Decadal Survey
texts

eye 1,142

favorite 0

comment 0

The purpose of this study was to determine the feasibility of a Lunar Geophysical Network (LGN) mission to the Moon. It was conducted by Marshall Space Flight Center's, Robotic Lunar Lander Development Project team in partnership with the Johns Hopkins University/Applied Physics Laboratory (JHU/APL). This study was documented based on previous trades, analysis and options for concepts developed by the team over the last 18 months, with a goal of determining whether such a mission could be...
Topics: Lunar Geophysical Network, (LGN), NASA, Mission Concept Study, Decadal, Lunar, Moon
NASA Technical Documents
texts

eye 3,720

favorite 4

comment 0

No Abstract Available
Topics: APOLLO PROJECT, COMMAND SERVICE MODULES, LUNAR MODULE, MISSION PLANNING, SPACECRAFT DESIGN, SPACE...
NASA Technical Documents
texts

eye 3,198

favorite 3

comment 0

No Abstract Available
Topics: COMMUNICATION NETWORKS, RELIABILITY ENGINEERING, TOPOLOGY, FAILURE ANALYSIS, FAULT TREES, GRAPH...
NASA Technical Documents
texts

eye 4,857

favorite 0

comment 0

Transformation of data into knowledge through conceptual induction has been the focus of our research described in this paper. We have developed a Machine Learning System (MLS) to analyze the rocket engine simulation data. MLS can provide to its users fault analysis, characteristics, and conceptual descriptions of faults, and the relationships of attributes and sensors. All the results are critically important in identifying faults.
Topics: DYNAMIC LOADS, DIMENSIONAL ANALYSIS, FAILURE MODES, LOAD DISTRIBUTION (FORCES), STRAIN...
NASA Technical Documents
texts

eye 397

favorite 0

comment 0

A temporal adaptive algorithm for the time-integration of the two-dimensional Euler or Navier-Stokes equations is presented. The flow solver involves an upwind flux-split spatial discretization for the convective terms and central differencing for the shear-stress and heat flux terms on an unstructured mesh of triangles. The temporal adaptive algorithm is a time-accurate integration procedure which allows flows with high spatial and temporal gradients to be computed efficiently by advancing...
Topics: COMPUTATIONAL FLUID DYNAMICS, WIND TUNNEL TESTS, COMPUTATIONAL GRIDS, COMPUTER PROGRAMS, FLOW...
The AIAA/NASA Conference on Intelligent Robotics in Field, Factory, Service, and Space (CIRFFSS '94) was originally proposed because of the strong belief that America's problems of global economic competitiveness and job creation and preservations can partly be solved by the use of intelligent robotics, which are also required for human space exploration missions. Individual sessions addressed the following topics: (1) vision systems integration and architecture; (2) selective perception and...
Topics: COMPUTER NETWORKS, CENTRAL PROCESSING UNITS, RESEARCH AND DEVELOPMENT, COMPUTER SYSTEMS DESIGN,...
Planetary Science Decadal Survey
texts

eye 1,514

favorite 0

comment 0

The Enceladus Orbiter (EO) mission would explore Saturn's moon Enceladus, investigating the following in order of priority: -The nature of Enceladus's cryovolcanic activity -The internal structure and chemistry of Enceladus -The geology of Enceladus -The interaction of Enceladus with the Saturn system -The surfaces and interiors of Saturn's moons Rhea, Dione and Tethys -Preparation for potential future landing on Enceladus
Topics: Enceladus, NASA, MIssion Concept Study, Decadal
NASA Technical Documents
by Fries, Sylvia Dought
texts

eye 2,010

favorite 0

comment 0

A historical account of NASA's Apollo era engineers is presented. This book is based on interviews that were conducted with fifty-one 'typical' engineers.
Topics: COEFFICIENTS, HYPERBOLAS, IMAGE PROCESSING, MATRICES (MATHEMATICS), PARABOLAS, PARALLELEPIPEDS,...
NASA Technical Documents
texts

eye 10,060

favorite 3

comment 0

All the basic areas of anthropometry and its applications to the design of clothing, equipment, and workspaces for manned space flight are presented.
Topics: CANCER, NEOPLASMS, RADIOBIOLOGY, TUMORS, CONFERENCES, HYPERTHERMIA, RADIATION THERAPY, RADIO...
NASA Technical Documents
texts

eye 1,540

favorite 0

comment 0

A theory is derived in which all strains vanish for any rigid-body motion in contrast to the results of Love's theory. Expressions for the stress resultants and couples which satisfy the homogeneous equilibrium equations are given in terms of three stress friction. The special forms of the equations of the now theory in the case of a circular cylinder are given in an appendix.
Topics: NOZZLE WALLS, THICKNESS, HEAT TRANSMISSION, CERAMIC COATINGS, INSULATION, HEAT SINKS, HEAT...
NASA Technical Documents
by Sagan, C
texts

eye 543

favorite 0

comment 0

No Abstract Available
Topics: ATMOSPHERIC RADIATION, ENERGY BUDGETS, VENUS (PLANET)
Planetary Science Decadal Survey
by John Spencer
texts

eye 1,245

favorite 0

comment 0

Titan is a high priority for exploration, as recommended by NASA's 2006 Solar System Exploration (SSE) Roadmap (NASA 2006), NASA's 2003 National Research Council (NRC) Decadal Survey (NRC Space Studies Board 2003) and ESA's Cosmic Vision Program Themes. Recent revolutionary Cassini-Huygens discoveries have dramatically escalated interest in Titan as the next scientific target in the outer solar system. This study demonstrates that an exciting Titan Saturn System Mission (TSSM) that explores two...
Topics: Titan, Saturn, Titan Saturn System Mission, NASA, Mission Concept Study, Decadal
NASA Technical Documents
by Tomayko, James E
texts

eye 19,206

favorite 2

comment 0

This book examines the computer systems used in actual spaceflight or in close support of it. Each chapter deals with either a specific program, such as Gemini or Apollo onboard computers, or a closely related set of systems, such as launch processing or mission control. A glossary of computer terms is included.
Topics: BRIGHTNESS, STABILITY, TRAJECTORY ANALYSIS, QUASARS, STATISTICAL ANALYSIS, VARIABILITY, ASYMPTOTIC...
NASA Technical Documents
texts

eye 3,630

favorite 0

comment 0

This bibliography lists 1,158 reports, articles, and other documents introduced into the NASA scientific and technical information system between January 1, 1988 and June 30, 1988. Its purpose is to provide helpful information to researchers, designers and managers engaged in Space Station technology development and mission design. Coverage includes documents that define major systems and subsystems related to structures and dynamic control, electronics and power supplies, propulsion, and...
Topics: ADA (PROGRAMMING LANGUAGE), RUN TIME (COMPUTERS), SOFTWARE ENGINEERING, ARTIFICIAL INTELLIGENCE,...
NASA Technical Documents
texts

eye 2,374

favorite 0

comment 0

Statistical filter theory application in optimal position and velocity estimation on board circumlunar vehicles
Topics: ESTIMATING, SPACECRAFT, STATISTICAL ANALYSIS, VELOCITY, SPACE VEHICLE, VELOCITY
NASA Technical Documents
by NON
texts

eye 4,242

favorite 1

comment 0

The Aerospace Mechanisms Symposium (AMS) provides a unique forum for those active in the design, production and use of aerospace mechanisms. A major focus is reporting problems and solutions associated with the development and flight certification of new mechanisms. Organized by the Mechanisms Education Association, NASA and Lockheed Martin Space Systems Company (LMSSC) share the responsibility for hosting the AMS. Now in its 37th symposium, the AMS continues to be well attended, attracting...
Topics: FABRICATION, NONLINEARITY, STATIC TESTS, FINITE ELEMENT METHOD, MATHEMATICAL MODELS, STATISTICAL...
NASA Technical Documents
by HOHMANN, WALTE
texts

eye 3,752

favorite 2

comment 0

THIS WORK (ORIGINALLY PUBLISHED IN 1925) CONTRIBUTES TO RECOGNITION OF THE FEASIBILITY OF SPACE TRAVEL. TREATED ARE PROBLEMS ASSOCIATED WITH LEAVING THE EARTH, RETURN TO EARTH, FREE-SPACE FLIGHT, CIRCUM-NAVIGATION OF CELESTIAL OBJECTS, AND LANDING ON OTHER CELESTIAL OBJECTS.
Topics: DIFFUSION THEORY, REACTIVITY, DIFFUSION, SIMULATORS, SHIELDING
NASA Technical Documents
texts

eye 2,772

favorite 0

comment 0

Horn antenna with suppressed sidelobes and equal beamwidth - radiation characteristics of dual- mode conical horn
Topics: BEAMS (RADIATION), HORN ANTENNAS, SIDELOBE REDUCTION, SIDELOBES, HORN ANTENNA, RADIATION, SIDELOBE...
NASA Technical Documents
by MOROZ, V. I
texts

eye 4,353

favorite 0

comment 0

HANDBOOK ON PLANETARY PHYSICS
Topics: MARINER SPACE PROBES, PYROTECHNICS, SHOCK MEASURING INSTRUMENTS, VENUS PROBES, MARINER SPACECRAFT,...
NASA Technical Documents
by Braverman, A. S.; Grodko, L. N.; Leykand, M. A.; Mil, M. L.; Nekrasov, A. V
texts

eye 18,173

favorite 7

comment 1

Rotor aerodynamics in relation to historical and ideal development of helicopters
favoritefavoritefavorite ( 1 reviews )
Topics: AERODYNAMICS, HELICOPTER DESIGN, HELICOPTERS, HISTORIES, ROTOR AERODYNAMICS, HELICOPTER DESIGN,...
NASA Technical Documents
texts

eye 1,551

favorite 1

comment 0

A DETAILED SELECTION OF PROBLEMS ON THE DYNAMICS OF THE MOTION OF A MATERIAL POINT ACTED ON BY A CENTRAL GRAVITATIONAL FORCE, IN PARTICULAR, THE DYNAMICS OF SPACE FLIGHT IS PRESENTED ALONG WITH SEVERAL PROBLEMS ON THE MOTION OF A POINT ACTED ON BY CENTRAL NONGRAVITATIONAL FORCES. TOPICS COVERED INCLUDE KEPLER'S LAWS, BINET'S FORMULAS FOR CENTRAL FORCES, THE ENERGY BALANCE AND VELOCITY ALONG A SPACE TRAJECTORY, TIME OF MOTION ALONG A SPACE TRAJECTORY, CONDITIONS FOR THE EXISTENCE OF ELLIPTICAL...
Topics: LATTICE PARAMETERS, POISSON EQUATION, SOLID STATE PHYSICS, SUM RULES, CESIUM COMPOUNDS, CHLORIDES,...
NASA Technical Documents
by Tsiolkovskiy, K. E
texts

eye 5,448

favorite 3

comment 0

A classical, comprehensive collection of theoretical studies on interplanetary space travel, jet propulsion, and rocket technology is presented. Topics treated are: (1) escape velocity; (2) trajectories; (3) design considerations; (4) fuels; (5) food supplies and spacecraft environment during spaceflight; and (6) the general mechanics of spaceflight.
Topics: COMBUSTION CHAMBERS, EXHAUST GASES, POLLUTION CONTROL, AIR POLLUTION, DESIGN ANALYSIS
NASA Technical Documents
by Leontev, U. N.; Vlasov, V. Z
texts

eye 5,744

favorite 4

comment 0

Theory based on Vlasov general variational method to analyze beams and plates on elastic foundations
Topics: ELASTIC PROPERTIES, FOUNDATIONS, PROBLEM SOLVING, VARIATIONAL PRINCIPLES, VLASOV EQUATIONS,...
NASA Technical Documents
by Compton, W. D.; Benson, C. D
texts

eye 1,848

favorite 0

comment 0

The history of Skylab is examined with emphasis on program development from previous Apollo missions, modifications to spacecraft, onboard experiments, and flight crew training. A listing of the missions and an evaluation of results are included with a brief description of the workshop's reentry.
Topics: AIR SAMPLING, TABLES (DATA), TOXIC HAZARDS, ATMOSPHERIC COMPOSITION, BOEING 747 AIRCRAFT, CABIN...
Planetary Science Decadal Survey
texts

eye 20,197

favorite 2

comment 0

Near Earth objects (NEOs) are attractive targets for spacecraft missions with the purpose of obtaining greater insight to the nature of the original bodies from which the terrestrial planets formed, without having to visit the Main Belt itself. Greater knowledge of NEOs directly sheds light on the origin and evolution of the asteroid belt, the formation of planets, and the history of the solar system. This report describes a search for NEOs that would be accessible for missions launching in...
Topics: Asteroids, NASA, Decadal, Trajectory Opportunities, Survey, Near Earth Asteroids, NEOs
NASA Technical Documents
texts

eye 2,605

favorite 0

comment 0

This bibliography lists 485 reports, articles, and other documents introduced into the NASA scientific and technical information system between October 1 and December 31, 1988. Emphasis is placed on the use of remote sensing and geophysical instrumentation in spacecraft and aircraft to survey and inventory natural resources and urban areas. Subject matter is grouped according to agriculture and forestry, environmental changes and cultural resources, geodesy and cartography, geology and mineral...
Topics: LUNAR BASES, LIFE SUPPORT SYSTEMS, NUCLEAR PROPULSION, SPACE STATIONS, SPACE TRANSPORTATION SYSTEM,...
NASA Technical Documents
by Swansson, E.; Powell, D
texts

eye 1,983

favorite 0

comment 0

No Abstract Available
Topics: APOLLO SOYUZ TEST PROJECT, MISSION PLANNING, SPACECRAFT CONFIGURATIONS, COMMAND SERVICE MODULES,...
NASA Technical Documents
by Litvin, Faydor L.; Handschub, Robert F
texts

eye 2,726

favorite 0

comment 0

This book presents recent developments in the theory of gearing and the modifications in gear geometry necessary to improve the conditions of meshing. Highlighted are low-noise gear drives that have a stable contact during meshing and a predesigned parabolic transmission error function that can handle misalignment during operation without sacrificing the low-noise aspects of operation. This book also provides a comprehensive history of the development of the theory of gearing through...
Topics: BRIDGMAN METHOD, SPACE SHUTTLES, TEMPERATURE GRADIENTS, FURNACES, MICROGRAVITY, PAYLOADS, SPACE...
Planetary Science Decadal Survey
by Elizabeth Turtle
texts

eye 759

favorite 0

comment 0

The Jovian moon Io is likely the most geologically active body in the solar system, offering insight into tidal heating, volcanic processes, and other phenomena. However, its location within Jupiter's radiation belt presents significant engineering challenges that must be addressed to enable future missions to Io. Under the direction of NASA, and with direct guidance from the National Research Council's (NRC's) Satellites Panel, the Jet Propulsion Laboratory's (JPL's) Advanced Project Design...
Topics: Io, NASA, Mission Concept Study, Decadal
Planetary Science Decadal Survey
texts

eye 855

favorite 0

comment 0

The purpose of this study was to determine the feasibility of a mission to investigate the possibility of volatiles in permanently shadowed areas of the lunar poles -- the Lunar Polar Volatiles Explorer (LPVE). The overall science goals and objectives were provided as guidelines by the Decadal Survey Inner Planets Panel, with the goal of determining whether such a mission could be accomplished within a Principal Investigator (PI)-led mission cost cap (i.e., New Frontiers). This study was...
Topics: Moon, Lunar, NASA, Mission Concept Study, Volatiles, Polar
NASA Technical Documents
by Brennan, P. J.; Kroliczek, E. J
texts

eye 7,478

favorite 0

comment 0

No Abstract Available
Topics: HYDROGEN OXYGEN ENGINES, TURBOROCKET ENGINES, ORBIT TRANSFER VEHICLES, ROCKET ENGINE DESIGN,...
NASA Technical Documents
by Kurylo, M. J.; DeCola, P. L.; Kaye, J. A
texts

eye 597

favorite 0

comment 0

This document is issued in response to the Clean Air Act Amendment of 1990, Public Law 101-549, which mandates that the National Aeronautics and Space Administration (NASA) and other key agencies submit triennial reports to the Congress and the Environmental Protection Agency. NASA specifically is charged with the responsibility of reporting on the state of our knowledge of the Earth's upper atmosphere, particularly the stratosphere. Part l of this report summarizes the objectives, status, and...
Topics: BIBLIOGRAPHIES, AIRCRAFT ENGINES, GROUND SUPPORT EQUIPMENT, DESIGN ANALYSIS, PERFORMANCE TESTS,...
NASA Technical Documents
by Boulger, F. W.; Gerds, A. F.; Henning, H. J.; Strohecker, D. E
texts

eye 5,801

favorite 0

comment 0

Deformation processing of stainless steels using metal working techniques
Topics: AUSTENITE, TOOLING, DEFORMATION, METAL WORKING, STAINLESS STEEL, DEFORMATION, DIES, EXTRUDING,...
NASA Technical Documents
by NON
texts

eye 962

favorite 0

comment 0

Satellite tracking and data acquisition networks for space exploration
Topics: DATA ACQUISITION, SATELLITE TRACKING, SPACE EXPLORATION, DATA ACQUISITION, SATELLITE TRACKING,...
NASA Technical Documents
by Mikhailov, A. A
texts

eye 2,343

favorite 2

comment 0

Physics of solar system - solar line spectrum, photosphere, chromosphere, prominences, flares, corona, radio emission, moon, planet physics, comets, meteors, and zodiacal light
Topics: ASTROPHYSICS, SOLAR PHYSICS, SOLAR PROMINENCES, SOLAR SPECTRA, SOLAR SYSTEM, SPECTRA, ZODIAC,...
The results of a pressure test of a .00548 scale 146 inch Space Shuttle Solid Rocket Booster (SRB) with and without protuberances, conducted in a 14 x 14 inch trisonic wind tunnel are presented. Static pressure distributions for the SRB at reentry attitudes and flight conditions were obtained. Local longitudinal and ring pressure distributions are presented in tabulated form. Integration of the pressure data was performed. The test was conducted at Mach numbers of 0.40 to 4.45 over an angle of...
Topics: JUPITER (PLANET), PIONEER 10 SPACE PROBE, PIONEER 11 SPACE PROBE, IMAGERY, INTERPLANETARY FLIGHT,...
The active acoustic and structural noise control characteristics of a double wall cylinder with and without ring stiffeners were numerically evaluated. An exterior monopole was assumed to acoustically excite the outside of the double wall cylinder at an acoustic cavity resonance frequency. Structural modal vibration properties of the inner and outer shells were analyzed by post-processing the results from a finite element analysis. A boundary element approach was used to calculate the acoustic...
Topics: ALGORITHMS, TURBULENCE MODELS, AIRFOILS, PRESSURE DISTRIBUTION, MATRICES (MATHEMATICS), VELOCITY...
No Abstract Available
Topics: BEND TESTS, VAPOR DEPOSITION, CERAMICS, DUCTILITY, MAGNESIUM OXIDES, POLYCRYSTALS, SODIUM...
The Pioneer Venus spacecraft primary and backup operational modes and operational limitations for maneuvers, roll references transfer, attitude determination, spacecraft power discipline and spacecraft thermal discipline, are described. The functions and operations of the large and small probes, as well detailed performance in the normal operating modes and backup modes are presented.
Topics: CHESAPEAKE BAY (US), CONFERENCES, ECOSYSTEMS, ESTUARIES, REMOTE SENSING, COASTAL ECOLOGY,...
NASA Technical Documents
texts

eye 604

favorite 0

comment 0

No Abstract Available
Topics: ATMOSPHERIC IONIZATION, ROCKET-BORNE INSTRUMENTS, SPECTROMETERS, AURORAS, MOLECULAR SPECTROSCOPY,...
NASA Technical Documents
by Bornemann, W. E.; Surber, T. E
texts

eye 5,970

favorite 1

comment 0

An overview of the wind tunnel program is given and aerodynamic characteristics of the final configuration are described. Aerodynamic parameters critical to definition of Orbiter entry control and performance are identified. Trim capability and stability and control characteristics are discussed at critical regions in the entry trajectory. Methods are described to define reaction control rocket effectiveness and aerodynamic interactions during the initial portion of entry. At hypersonic speeds,...
Topics: ANGLES (GEOMETRY), AXISYMMETRIC FLOW, EXTERNALLY BLOWN FLAPS, JET IMPINGEMENT, OBLIQUE WINGS,...
NASA Technical Documents
texts

eye 3,505

favorite 0

comment 0

No Abstract Available
Topics: ENGINE DESIGN, STRUCTURAL ANALYSIS, TURBOFAN ENGINES, BYPASSES, COST ANALYSIS, LIFE CYCLE COSTS,...
For abstract, see N75-20149.
Topics: COMPOSITE MATERIALS, DIFFRACTION PATTERNS, DISPLACEMENT MEASUREMENT, HOLOGRAPHY, LASERS, CERAMICS,...
This catalog lists 2311 citations of all NASA Special Publications, NASA Reference Publications, NASA Conference Publications, and NASA Technical Papers that were entered into the NASA scientific and technical database during the decade 1977 through 1986. The entries are grouped by subject category. Indexes of subject terms, personal authors, and NASA report numbers are provided.
Topics: ARCHITECTURE (COMPUTERS), COMPUTER GRAPHICS, COMPUTER PROGRAMS, COMPUTERIZED SIMULATION, DISPLAY...
No Abstract Available
Topics: AERONAUTICAL ENGINEERING, METEOROLOGY, RESEARCH AND DEVELOPMENT, DOCUMENTS, INDEXES...
NASA Technical Documents
by Lee, C. C
texts

eye 2,388

favorite 0

comment 0

Fortran program for design of pure external and internal-external expansion plug nozzles
Topics: APPLICATIONS PROGRAMS (COMPUTERS), FORTRAN, NOZZLE DESIGN, PLUG NOZZLES, FORTRAN, NOZZLE
NASA Technical Documents
texts

eye 1,716

favorite 0

comment 0

Uranium plasmas applied to nuclear rocket engines, MHD generators, nuclear lasers, and plasma stability and flow - conference
Topics: AERODYNAMICS, AERONAUTICAL ENGINEERING, AERONAUTICS, AIRCRAFT DESIGN, AIRCRAFT ENGINES, GROUND...
NASA Technical Documents
by Walter, Neil A.; Scialdone, John J
texts

eye 17,649

favorite 0

comment 0

Outgassing data, derived from tests at 398 K (125 C) for 24 hours in a vacuum as per ASTM E 595-84, have been compiled for numerous materials for spacecraft use. The data presented are the total mass loss (TML) and the collected volatile condensable materials (CVCM). The various materials are compiled by likely usage and alphabetically.
Topics: AMINO ACIDS, VEGETATION GROWTH, POTATOES, SUBSTITUTES, PROTEINS, CALMODULIN
NASA Technical Documents
texts

eye 2,281

favorite 0

comment 0

Aircraft automation is examined and its effects on flight crews. Generic guidelines are proposed for the design and use of automation in transport aircraft, in the hope of stimulating increased and more effective dialogue among designers of automated cockpits, purchasers of automated aircraft, and the pilots who must fly those aircraft in line operations. The goal is to explore the means whereby automation may be a maximally effective tool or resource for pilots without compromising human...
Topics: AEROTHERMODYNAMICS, DATA REDUCTION, INVESTMENT CASTING, SPHERES, TARGET RECOGNITION, HEAT TRANSFER,...
NASA Technical Documents
texts

eye 12,211

favorite 3

comment 0

In August 1997, NASA sponsored a 3-day workshop to assess the prospects emerging from physics that may eventually lead to creating propulsion breakthroughs -the kind of breakthroughs that could revolutionize space flight and enable human voyages to other star systems. Experiments and theories were discussed regarding the coupling of gravity and electromagnetism, vacuum fluctuation energy, warp drives and wormholes, and superluminal quantum tunneling. Because the propulsion goals are presumably...
Topics: TEST CHAMBERS, AERODYNAMIC CHARACTERISTICS, HOT-WIRE ANEMOMETERS, FLOW DISTRIBUTION, WIND TUNNELS,...
NASA Technical Documents
texts

eye 3,899

favorite 1

comment 0

This document contains the proceedings of the 33nd annual NASA Aerospace Battery Workshop, hosted by the Marshall Space Flight Center on November 14-16, 2000. The workshop was attended by scientists and engineers from various agencies of the U.S. Government, aerospace contractors, and battery manufacturers, as well as international participation in like kind from a number of countries around the world. The subjects covered included nickel-hydrogen, lithium-ion, lithium-sulfur, and silver-zinc...
Topics: COATINGS, MANUFACTURING, OPTICAL MATERIALS, DIELECTRICS, MIRRORS, ULTRAVIOLET RADIATION, VACUUM...
Planetary Science Decadal Survey
texts

eye 402

favorite 0

comment 0

A proposed New Frontiers mission concept for Venus lander.
Planetary Science Decadal Survey
by Mark Hofstadter
texts

eye 304

favorite 0

comment 0

This paper discusses some of the fundamental science that must be done at Uranus if we are to understand our Solar System and systems discovered around other stars. We suggest a Uranus Orbiter should be launched in the next decade.
NASA Technical Documents
by Arbit, H. A.; Clapp, S. D.; Nagai, C. K
texts

eye 3,028

favorite 0

comment 0

Feasibility of lithium-fluorine-hydrogen propellant combination
Topics: COMETS, METEOROIDS, COSMOLOGY, DISRUPTING, SOLAR SYSTEM
NASA Technical Documents
texts

eye 3,559

favorite 1

comment 0

The physicomechanical aspects of the emergence of the planets are discussed, based on the concept of accretion from solid bodies and particles which, together with the gases, made up the protoplanetary cloud enveloping the sun in the early phases of its development. The idea of accretion was extensively developed in Shmidt's theory and later in the physicochemical studies of meteorites carried out by Urey and others. The evolution of the gas-dust protoplanetary cloud and the formation of a...
Topics: ADAPTIVE CONTROL, ALGORITHMS, AUTOMATIC FLIGHT CONTROL, DIGITAL COMPUTERS, ONBOARD EQUIPMENT,...
This two volume publication presents the proceedings of the third through sixth history symposia of the International Academy of Astronautics. Thirty-nine papers are divided into four categories: (1) Early Solid Propellant Rocketry; (2) Rocketry and Astronautics: Concepts, Theory, and Analyses after 1880; (3) The Development of Liquid and Solid Propellant Rockets from 1880 to 1945; and (4) Rocketry and Astronautics after 1945. Categories 1 and 2 will be found in volume 1 and the remainder in...
Topics: ALGORITHMS, LEAST SQUARES METHOD, MATRICES (MATHEMATICS), MATHEMATICAL MODELS, ORTHOGONAL...
NASA Technical Documents
by Krasnov, N. F
texts

eye 5,554

favorite 5

comment 0

The applications of aerodynamics particularly in rocket technology and modern high-speed aviation are studied along with the general laws of motion of a gas medium. The first six chapters of the book cover the following: basic concepts and definition of aerodynamics, kinematics of a fluid medium, equations of motion of a gas in the general case (where variations in its physico-chemical properties are considered), the theory of shock waves, the method of characteristics (very widely used in the...
Topics: DEEP SPACE NETWORK, MISSION PLANNING, MULTIPATH TRANSMISSION, OPERATIONS RESEARCH, PIONEER VENUS 2...
NASA Technical Documents
texts

eye 1,994

favorite 0

comment 0

The Catalog of Infrared Observations and its Far Infrared Supplement summarize all infrared astronomical observations at infrared wavelengths published in the scientific literature between 1965 and 1982. The Catalog includes as appendices the Bibliography of infrared astronomy which keys observations in the Catalog with the original journal references, and the index of infrared source positions which gives source positions for alphabetically listed sources in the Catalog. The Catalog data base...
Topics: CRACK GEOMETRY, MATHEMATICAL MODELS, MEASURE AND INTEGRATION, MICROCRACKS, STRESS INTENSITY...
This document contains a collection of experiments presented and demonstrated at the National Educators' Workshop: Update 2000 held in Dayton and Kettering, Ohio, October 29 - November 1, 2000.
Topics: COMPUTATIONAL FLUID DYNAMICS, TECHNOLOGY UTILIZATION, COMPUTERIZED SIMULATION, TECHNOLOGY...
NASA Technical Documents
texts

eye 1,470

favorite 1

comment 0

Electrophysiological and conditioned reflex methods for determining effect of electromagnetic and magnetic fields on central nervous system of rabbits, pigeons, and fish
Topics: ANIMALS, RABBITS, VERTEBRATES, ANIMAL STUDY, CENTRAL NERVOUS SYSTEM, CONDITIONED RESPONSE,...